A connector system includes a first housing, a second housing and a third housing. A passive noise reduction element reduces external noise entering the ear canal. The first error correction circuit has a higher error correction capability but lower input-per-output bit efficiency than the second error correction circuit to correct important data such as a highest bit inputted to a DA converter. The arm is balanced to provide low force disturbance during this movement. The system analyzes the plurality of two-character responses, converts them into an ASCII database search request, search for the requested information from a database, and provides an audio response to the user.